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ZCZC NFDSPENES ALL SPENES PRZ000- . SATELLITE PRECIPITATION ESTIMATES..DATE/TIME 08/10/21 1413Z SATELLITE ANALYSIS BRANCH/NESDIS---NPPU---TEL.301-683-1404 LATEST DATA USED: 12Z TJSJ SOUNDING; 1350Z GOES-16; 1406Z RADAR; 06Z HRW_PR_ARW; 06Z GFS PWATS . LOCATION...PUERTO RICO... . ATTN WFOS...SJU... ATTN RFCS... . EVENT...IMPACTS FROM TROPICAL CYCLONE SIX . SATELLITE ANALYSIS AND TRENDS...THE OUTER BANDING OF CURRENTLY TROPICAL DEPRESSION SIX ARE ABOUT 65NM FROM THE EAST COAST OF PUERTO RICO. THE NATIONAL HURRICANE CENTER’S CURRENT FORECAST TRACK HAS THE CENTER PASSING JUST TO THE SOUTH OF MOST OF THE ISLAND WITH A POSSIBLE LANDFALL ON THE WEST COAST NEAR CABO ROJO OVERNIGHT TONIGHT. THE LATEST SOUNDING SHOWS ONSHORE EASTERLY FLOW WHICH WILL AID IN ADVECTING MOISTURE IN AHEAD OF THE STORM. LATEST RADAR SHOWS THE EFFECTS OF THIS AS ISOLATED SHOWERS BEGIN TO IMPACT THE EASTERN THIRD OF THE ISLAND. PWATS CURRENTLY HOVER AT AROUND 1.75IN WITH HIGHER VALUES ADVECTING IN FROM THIS APPROACHING CYCLONE. A FLASH FLOOD WATCH HAS BEEN ISSUED FOR THE AREA. . SHORT TERM OUTLOOK VALID 1430-0600Z...HIGH CONFIDENCE FACTOR IN SHORT TERM OUTLOOK...THE NATIONAL HURRICANE CENTER FORECASTS TROPICAL CYCLONE SIX TO INTENSIFY TO TROPICAL STORM STRENGTH BY THIS EVENING. WIDESPREAD HEAVY RAINFALL AND TROPICAL STORM-FORCE WINDS WILL BEGIN TO IMPACT THE ISLAND BY 1700Z LASTING THROUGH THE END OF THE FORECAST PERIOD. PWATS ARE FORECAST TO INCREASE TO AROUND 2.25IN AS THE CENTER APPROACHES. RAINFALL RATES NEAR AN INCH PER HOUR WILL BE POSSIBLE ESPECIALLY IF THE STORM TRACKS FURTHER NORTH. NEVERTHELESS URBAN AND SMALL STREAM FLOODING WILL BE LIKELY WITH A POSSIBILITY OF FLASH FLOODING WHERE THE HEAVIEST RAIN BANDS SET UP. . ....NESDIS IS A MEMBER OF NWSCHAT (NESDISSATELLITEPRECIP).... ....NESDIS IS A MEMBER OF 12 PLANET.... . FOR QUESTIONS AND COMMENTS CONCERNING THE SATELLITE PRECIPITATION MESSAGES AND GRAPHICS PLEASE EMAIL SSDPrecip@noaa.gov . FOR PRECIP MESSAGES AND GRAPHICS ON THE WEB: http://www.ospo.noaa.gov/Products/atmosphere/spe/ . FOR AUTOMATED SATELLITE PRECIPITATION ESTIMATES ON THE WEB: http://www.star.nesdis.noaa.gov/smcd/emb/ff/CONUS.php . LAT...LON 1880 6570 1862 6527 1838 6514 1803 6520 1776 6574 1757 6688 1779 6746 1807 6764 1835 6763 1858 6730 1872 6662 . NNNN |
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